I've written a couple of free iPhone apps - Words, which you can read about on this page, and Airports.

Words

Words is a free app designed to assist you when solving Scrabble and WordScraper types games, crossword puzzles and anagrams.

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The interface is clean an intuitive. Simply enter the letters you have in your rack, or those you already know from the crossword and Words will provide you with a list of possible words.

Crossword mode

If you enter "A?E", Words will return all words beginning with A, ending with E with a single letter in the middle.

Scrabble mode

Searching for "A?E" will return all words which contain an A and/or an E and/or any other letter. Words currently uses the SOWPODS dictionary.

Airports can be downloaded now from the iTunes App Store.

Update: Words has now been updated for iOS 5.

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